7. Whitley has a $5 gift card for music downloads. Far
Sa gift card for music downloads. Each song costs $1 to download.
The amount of money left on the card can be represented by the function
Md) = 5-d, where d is the number of songs she has downloaded.
a. Make a table and graph the function.
M(d)
(d, M(d))
b. Identify the domain and range of the function and the units of the
independent and dependent variables.